I just moved the OperationsManagerDW to another server and after 1 day started getting this mesg,
Alert: Data Warehouse event data writer process failed to perform maintenance operation
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Last modified by: System
Last modified time: 7/26/2014 3:01:43 PM Alert description: Data Warehouse event data writer process failed to perform maintenance operation. Data was written to the Data Warehouse staging area but processing failed on one of the subsequent operations.
Exception 'SqlException': Error 777971002, severity 16, state 1 was raised, but no message with that error number was found in sys.messages. If error is larger than 50000, make sure the user-defined message is added using sp_addmessage.